Regarding Susan Sontag  is an intimate, nuanced investigation into the life of one of the most influential and provocative thinkers of the twentieth century. Passionate and gracefully outspoken, Susan Sontag became one of the most important literary, political and feminist icons of her generation. The documentary explores Sontag's life through evocative experimental images, archival materials, accounts from friends, family, colleagues, and lovers, and her own words, read by the actress Patricia Clarkson. From her early infatuation with books and her first experience in a gay bar; from her marriage in adolescence to her relationship with her last lover, Annie Leibovitz, Regarding Susan Sontag builds up a fascinating portrait of this towering cultural critic and writer, whose works on photography, war, illness, and terrorism still resonate today.

More than any other thinker of her day, Sontag was watched, viewed, photographed and stared at. She was gazed at, and she looked back, very carefully, particularly at language and metaphor and at photography and what she called "the ecology of images." Regarding Susan Sontag gives viewers the chance to watch Sontag while she examines the world.